Part 1 of this report includes paper PVP2006-ICPVT11-94010, "Comparison of Pressure Vessel Codes ASME Section VIII and EN13445." This paper consists of a comparative study of the primary technical, commercial, and usage differences between the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Section VIII and the European Pressure Vessel Code EN13445 (EN). This study includes a review of "Comparative Study on Pressure Equipment Standards" published by the European Commission (EC) and provides technical comparisons between the code design requirements, material properties, fabrication, and contributing effects on overall cost. This study is intended to provide a broad viewpoint on the major differences and factors to consider when choosing the most appropriate vessel design code to use. Part II of this report includes paper PVP2006-ICPVT11-93059, "Design Fatigue Life Comparison of ASME Section VIII and EN 13445 Vessels with Welded Joints." The "Comparative Study on Pressure Equipment Standards" performed by the EC included a comparison of design fatigue life of welded vessels allowed by the ASME Boiler and Pressure Vessel Code (B